<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>网络安全训练营</title>
</head>
<body style="background-color: orange">
    <h2>&lt;a&gt;极客时间&lt;p&gt;</h2>
    <hr>
    <a href="https://time.geekbang.org/">
        <img src="https://static001.geekbang.org/resource/image/25/e4/255ca9c7aeb56da30ac95310b924dfe4.png" title="极客时间"/>
    </a>
</body>
</html>